By actual test I'm a believer in that statement now.
If I want/need to fire from the hip (a-la pistol grip style) I still can with the stock under my arm. No change in the effective length. With the stock though, I now have the option of bringing it up to my shoulder for a more aimed shot.
Agreed.
I would not use a pistol grip with anything over 7.5 field loads, and whats the point in that?
Put some 3” 00 buck in there and you’ll break your hand.